<html><?php // a single line comment
function/* this is a function! */my_function($arg0,/* comment within a parameter */$arg1=null)/* comment after a function */{
// comment before a statement
return "42";// comment after a statement
return "43";
// comment on a new line
}echo my_function(    /* empty arg */   );
/* /* */
/* // */
// /*
/* a comment
that spans multiple lines */
/* a comment
which is indented */
/*            */
/**
 * java doc comment
 */?><body><h1>Hello, world!</h1>/* comment in html - unparsed */</body></html>